I just bought a 93 oceanis 370. I can't figure out the hotwater system. It has a electrical wire entering it but I can't trace where the wire goes. I've checked the panel and there is no breaker. I put a signal tracer on the wire but could not get a trace after the wire goes aft of the hotwater heater. Did this model not come with hot water capablity while dockside and connected to 110 volts?